FIN MATERIAL PERFORMANCE GLASS (PG). FIN SIZE MEDIUM (65Kg - 80Kg). FIN SPECS FRONT Base: 4.41" / 112mm, Depth: 4.57" / 116mm, Area: 15.49"^2 / 9994mm^2, Sweep: 35.4 degrees, Foil: Flat. REAR Base: 4.09" / 113mm, Depth: 4.26" / 108mm, Area: 12.61"^2 / 81
The FCS system (Fin Control System) was designed by Brian A. Whitty in Elanora, Australia, and patented on November 7, 1995. It can be recognized by the 2 tabs on the fins which are designed to fit into a securing plug that attaches the fin to the board.